допилил ownerWidget в DataBaseLMS

DataBaseLMS/databaselms.h

@@ -4,6 +4,7 @@
 #include <QSqlDatabase>
 #include <QMutex>
 #include <QWidget>
+#include <QTranslator>
 
 #include "instructor.h"
 #include "trainee.h"
@@ -23,12 +24,17 @@ public:
     int dbPort = 5432;
 };
 
-class DataBaseLMS
+class DataBaseLMS : public QObject
 {
+    Q_OBJECT
+
 public:
-    DataBaseLMS(QWidget *ownerWidget);
+    DataBaseLMS(QWidget *ownerWidget, QObject *parent = nullptr);
     ~DataBaseLMS();
 
+public Q_SLOTS:
+    void slot_LanguageChanged(QString language);
+
 public:
     static const QString TypeUserDBInstructor;
     static const QString TypeUserDBTrainee;
@@ -110,9 +116,9 @@ private:
 protected:
     QSqlDatabase* db;
     DataBaseSettings dbSettings;
+    QTranslator qtLanguageTranslator;
 
 private:
-    bool transactionBegined;    
     QWidget* ownerWidget;
 };